12:00am 18/08/2023 to 2:00am 18/08/2023
You can find out more about Design Rainfall and IFD here.
Maximum observed rainfall by duration, estimated return period and AEP
Duration
Rainfall
Start
End
Years
AEP
10m
0.4 mm
12:50am 18/08/2023
1:00am 18/08/2023
1 in 1 years
100 %
20m
0.8 mm
12:50am 18/08/2023
1:10am 18/08/2023
1 in 1 years
100 %
30m
1.0 mm
1:20am 18/08/2023
1:50am 18/08/2023
1 in 1 years
100 %
60m
1.8 mm
12:50am 18/08/2023
1:50am 18/08/2023
1 in 1 years
100 %
90m
2.2 mm
12:30am 18/08/2023
2:00am 18/08/2023
1 in 1 years
100 %
120m
2.4 mm
12:00am 18/08/2023
2:00am 18/08/2023
1 in 1 years
100 %
Note: A '1 in 1.0 years' estimate means that it is almost certain to occur at least once in a year, and could occur much more than once per year on average. For smaller values like this the Annual Recurrance Interval (ARI) may be of more relevance, but it is complex to calculate for common events.